Apparatus for blending materials



octzz, 1935. f F.J..MUE-H Erm. 2,013,082

APPARATUS FOR BLENDING MATERIALS Filed Julyzs, 1952 s sheets-sheet 2 www v l v l v I l v /Q l: lllll l nl: 4

y fwm f Oct. 22, 1935.l l F. J. MUENCH E'r AL 2,018,082

APPARATUS FOR BLENDING MATERIALS A Filed July 2s, 1952 s sheets-sheet s i 'Tr-i g j.

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Frank J. Muench, Newark, and John L. Muench, ShortHills, N. J., assignors to General Machine Company, Newark, N.

Application July 23,1932, serial No. 624.166 ji claims..A (ci. v259-81)r vThis invention relates to machines for mixing materials and has especial reference to blending` successive batches of dry material such as paints, pigments, metallic oxides, flour. cosmetics,

r etc.

o An object of the invention is to permit the mixer to be filled, operated, and discharged in a minimum of time.

A further object is to permit the entire operai tion to be as dust proof as possible.

A still further object is toprevent fire..in the mixer. y

A yet further object is to pemiit=the 'mixer to be easily operated in all its functions from the iloor of the plant by one man in a minimum of time.

Further and more specific objects, features and advantages will more clearly appear from a conlsideration of the specification hereinafter taken in connection with the accompanying drawings which'form part of the specification and which illustrate a present preferred form of the invention;

l `vThe general construction of the apparatus includes a mixer of hollow double cone shape with relatively smooth interior. A water pipe extends slightly into the mixer axially through one jour-f nal and has a fusible plug in its end to permit water to get into the mixer at high tempera- A bin for ground batches is disposed above the mixer and has an opening to discharge into the mixer and a ilexible sleeve connecting the opening with the opening in the mixer. The lower end of the sleeve is a metal collar adapted to t the port of the mixer to prevent escape of material. This collar may be lowered into and raised from position by means of cables or ropes from the floor of the plant. The opening in the mixer is controlled by a slide gate with a rack and pinion. The pinion is operated by a hand wheel and a cable or chain extends'from this wheel to y the opposite end of the mixer to permit the gate to be operated in either up or down position of the gate opening.

A dust collecting apparatus may be connected to a suitable pipe in the mixer when the mixer is in discharge position so as to prevent escape of dust. A canvas sleeve extends from the discharge opening to and over a barrel receiving the material after it has been thoroughly mixed. A lnovel hinged manhole is provided to conveniently clean and inspect the interior of the barrel.

In the drawings,- 5.5V Fig. 1 is a sectional-view of the device in charging position;

Fig. 2 is an elevation in discharge position; and Fig. 3 is a. plan view. As shown in the drawings, the devi'ce includes lo a bin I0 on the oor above. A neck extends through the iioor above the mixer and a exible canvas sleeve I I with a lower metal collar I2 can be lowered by means of ropes I3 from the floor of the plant 'by the man in charge of the unit.

The collar I2 is designed andmachined to llt into 5 the lling opening I4 of the mixer I5 when lowered thereinto. The opening may be closed by a slide gate I6 actuated by rack I`-1, and pinion I8 through the hand wheel I9. A cable or chain 20 extends to opposite end of mixer I5 to another 10 hand Wheel 2| so that the'operator may control the gate I6 when it is either above or below the mixer.

The mixer is of double cone shape substantially smooth inside to permit thorough and quick and 15 efficient mixing and discharges itself and Ais easy to clean. It is supported to rotate around its axis at right angles to the conical axis. Castings 22 and 23 are welded or riveted to it and have bearings 24 and 25 housed in journals 26 and 2-1 on'up- 20 per ends of pedestals 28 and 29. These'pedestals may be based'on the iioor or hung from girders as desired. The opening described is at one apex of the double cone and a removable cover 30 is at the other apex. A manhole plate 3l also per- 26 mits ready inspection `ancl cleaning of the mixer.

A pipe 32 extends partially into mixer I5 through bearing 25 and has a, swivel joint` atv 33. A fusible plug34 is disposed on the end of the pipe 32 to admit water to the mixer when 30 the temperature gets too high. The opposite bearing 24 is connected to a drive pinion 35 forming part of a reduction gear unit 36 and driven by a motor 31. A pipe 38 leads from the mixer to a dust collecting apparatus when discharging 35 as shown in Fig. 2. A barrel 39 is disposed below the mixer I5 and a canvas sleeve 40 connects it to the opening I4 when below to keep dust from escaping. The motor 31 may be controlled by any suitable electrical apparatus and regulated 40 byy button control to rotate the mixer in any direction continuously or to inch it step by step as desired.

In operation the mixer is inched to the po sition shown in Fig. 1 with the opening I4 below 45 the neck lof bin I0. The ropes I3 are operated to lower the collar I2 into the opening I4. Sleeve II prevents dust escaping as' the contents of. the bin I0 dump into the mixer I5. The gate I6 is then closed by turning the hand wheel 2l from 50 the floor of the plant and the discharge nozzle I2 'is raised. The mixer is then rotated for a suitable time whenr the blending is completed. 'I'hen it is stopped with the opening I4 over the barrel 39. Sleeve 40 is put into position and 55. I

pipe 38 connected to a dust collecting apparatus. Then wheel I9 is operated to open gate I6 and the contents of the mixer dumped out into one or more barrels or containers in a quick and dust-proof manner. 00

' makes this possible.

If, for any reason, material in the mixer gets too hot the fusible plug 34 will melt permitting water or other extinguishable material into the mixer'i `from theA pipe 32. After all the contents are out the mixer can be cleaned very easily and quickly by keeping the gate i6 open and by removing the cover and the manhole plate 3|. The substantially smooth interior Then the gate I6 is closed, the cover pui; on again, and the mixer moved to filling position and the operation repeated for a new batch. y.

The device is simple, efficient, practical, easy to operate by one man, and form parto! a simple methoduabove described. 1

Whil'e the invention has been described in detail and with respect to a present preferred form thereof it is not to be limited to such details and forms since many changes and modifications may be made inthe invention without departing from ther spirit and scope of the' invention in its broadest aspects. Hence it is desired to cover any and all. forms and modifications of the invention which may come within the language or scope of any one or more of the appended claims.

What isclamed, is: 1. In combination a means for4 rotating it around an axis at right f angles to the conical axis, a bin for ground mateposed at the bottom thereof, and a separate flexible sleeve to connect the discharge opening with a barrel or other container to fill the same with mixed material. y

2. In combination `a hollow double cone mixer,- means for rotating it aroundan axis at right angles to the conical axis, a bin for ground ymaterial vabove the mixer, a flexible connection adapted to be connected from the bin to an opening in the mixer, a slide gate in said opening. means to move the mixer so that the gate is disposed at the bottom thereof, and a separate flexible sleeve to connect the discharge opening with a barrel or other container to fill the same with hollow double cone mixer,

mixed material, and means for applying suction to the mixer while discharging the material.

' 3. In a rotatable hollow double cone mixer `disposed with its conical axis in a vertical plane, means to receive material through van opening from a bin above the mixer, means to rotate the mixery in a vertical plane, means;` to discharge the V.material in a dust-proof manner, means to spray 'the interior Uf the mixer with liquid if theinterior gets too'hot, means to apply suction to the mixer during discharge, and means tocontrol a gate in the opening in either receiving or discharginxposition of the mixer.

4. A rotary mixer of double conical shape with its conical axis disposed for rotation ina vertical 15 plane, a bin above it, anopening in the mixerfa. iiexible sleeve `dependent from the bin, a shaped collar on-the lower end of the sleeve and' adapted to nt into the opening in the mixer, and'means, such as cables to raise and lower said collar-from 2'0 the noor on which the mixer stands. 1 f :n

5. A rotary mixer of double conical shape, havmgan opening at,one apex, a slide Lgate controlling said opening, meansvto move said gate and means to operate said `gate-moving' lmeans 25 from the opposite end of the mixer, and means for rotating said mixer with :the yconical axis in a vertical plane.

6. Arotary mixer 0i' double conicalI shape with its conical axis disposed for rotation in a vertical 30 /i-plane, said mixer having an opening atone apex, a. slide gate controlling said opening,..a rack and pinion mechanism'for moving said gate, a cable connected to said mechanismand extending to discharge opening, a flexlbleconnection adapted 4,0

to be extended from said opening to a 'receptacle' to receive `mixed' material, vand means for applying suction apparatus to the mixer while the material is being discharged so that dust will not l escape. 45

FRANK'J, MENCI. JOHN L. MUENCH. 

